The BBC’s US partner, CBS News, has named the suspect as Ryan Wesley Routh, citing official sources, but what more do we know about him?
BBC Verify has found social media profiles matching that name, they indicate he called for foreign fighters to go to Ukraine to battle against Russian forces.
Routh, who had no military experience, told the New York Times in 2023 he had travelled to Ukraine immediately after Russia’s invasion in 2022 to find military recruits among Afghan soldiers who had fled the Taliban.
“Soldiers, please do not call me. We are still trying to get Ukraine to accept Afghan soldiers and hope to have some answers in the coming months… please have patience,” he wrote on Facebook in July.
Early reports suggest Routh had a criminal record and, according to CBS sources, he was charged and convicted of numerous felony offences – including carrying a concealed weapon.
Speaking to US media, Mr Routh’s son, Oran, described him as a “loving and caring father”.
